Very confused about this one... it makes no sense.
Some sockets on my Sys 3 (Cue Ball Wizard) won't light with LEDs, but will light with 44/47 bulbs installed. Other sockets ON THE SAME BOARD will light with LEDs. Other boards won't work at all with LEDs.
I tried swapping out different LEDs from different manufacturers, and it doesn't make a difference.
What gives? I'm stumped by this one.